becky anderson, cnn, london. >>> good morning, everyone. i'm deborah feyerick in this morning for randi kaye. it is 7:00 and we're so glad that you could join us here this morning. we begin this hour with the massive multistate manhunt for a rogue ex-cop who apparently has vowed vengeance on the men and women he used to work with. police are on alert in three states, california, nevada and arizona. and in mexico for any sign of christopher dorner. by land and air, search teams are combing the mountainous resort area of big bear what i can where dorner's truck was spotted thursday. he's accused of killing three people, including a police officer and the daughter of a retired cop. police say it's just a matter of time before they catch him. >> we're coming together today to catch mr. dorner. what that means is we will look under every rock, we will look around every corner and we will search mountaintops for him. the riverside police department is pledging all of their resources to this effort. >> police are urging dorner to turn himself in.